what is the expected output of the following code?\ncollection = \ncollection.append(1)\ncollection.insert(0…

what is the expected output of the following code?\ncollection = \ncollection.append(1)\ncollection.insert(0, 2)\nduplicate = collection:\nduplicate.append(3)\nprint(len(collection) + len(duplicate))

what is the expected output of the following code?\ncollection = \ncollection.append(1)\ncollection.insert(0, 2)\nduplicate = collection:\nduplicate.append(3)\nprint(len(collection) + len(duplicate))

Answer

Explanation:

Step1: Analyze the list collection

  • Initially, collection = [1].
  • After collection.append(1), collection = [1, 1].
  • After collection.insert(0, 2), collection = [2, 1, 1].

Step2: Analyze the list duplicate

  • duplicate = collection[:] (shallow - copy of collection), so duplicate = [2, 1, 1].
  • After duplicate.append(3), duplicate = [2, 1, 1, 3].

Step3: Calculate the lengths

  • len(collection): The length of collection (which is [2, 1, 1]) is (3).
  • len(duplicate): The length of duplicate (which is [2, 1, 1, 3]) is (4).
  • Then len(collection)+len(duplicate)=3 + 4=7.

Answer:

(7)